Grouping and Optimization of XPath Expressions in DB2 pureXML

Summary: Heuristic rewrite selects XPath groups for concurrent eval in DB2 pureXML, with cost-based global ordering and branch tuning. Shows that selective grouping reduces unnecessary branches and improves XQuery performance; implemented in DB2 9.5 pureXML. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 4054
Venue: SIGMOD
Year: 2008
Pagerank: 4.1945683e-05
Overall Rank: 12,366 | 13.98%
DOI: -

Incoming Non-self Citations Over Time

No non-self incoming citations found for this paper in this database.

Authors

Incoming Citations (Sorted by Pagerank)

Showing 0 of 0 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank

Outgoing Citations (Sorted by Pagerank)

Showing 14 of 14 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
106	Extensible/Rule Based Query Rewrite Optimization in Starburst	1992	SIGMOD	0.00048400734
240	Holistic Twig Joins: Optimal XML Pattern Matching	2002	SIGMOD	0.00031603463
446	Storing and Querying Ordered XML Using a Relational Database System	2002	SIGMOD	0.00022925415
1,793	The BEA/XQRL Streaming XQuery Processor	2003	VLDB	0.00010533088
1,795	MonetDB/XQuery: A Fast XQuery Processor Powered by a Relational Engine	2006	SIGMOD	0.00010526672
2,069	System RX: One Part Relational, One Part XML	2005	SIGMOD	9.6329563e-05
2,511	Query Processing for High-Volume XML Message Brokering	2003	VLDB	8.6204186e-05
3,610	From Tree Patterns to Generalized Tree Patterns: On Efficient Evaluation of XQuery	2003	VLDB	6.9196208e-05
3,616	XML and Relational Database Management Systems: Inside Microsoft SQL Server 2005	2005	SIGMOD	6.9116981e-05
4,207	Mixed Mode XML Query Processing	2003	VLDB	6.359465e-05
4,268	FluXQuery: An Optimizing XQuery Processor for Streaming XML Data	2004	VLDB	6.307451e-05
4,393	Native XML Support in DB2 Universal Database	2005	VLDB	6.2249023e-05
5,787	Native XQuery Processing in Oracle XMLDB	2005	SIGMOD	5.3277155e-05
8,604	Query Rewrite for XML in Oracle XML DB	2004	VLDB	4.4865165e-05

Semantically Similar Papers

Overall Rank	Paper	Year	Venue	Pagerank
12,305	Cost Based Plan Selection for XPath	2009	SIGMOD	4.1945683e-05
7,727	Semantic Query Optimization for XQuery over XML Streams	2005	VLDB	4.6663256e-05
12,605	Taming XPath Queries by Minimizing Wildcard Steps	2004	VLDB	4.1945683e-05
8,604	Query Rewrite for XML in Oracle XML DB	2004	VLDB	4.4865165e-05
4,931	Efficient Evaluation of XQuery over Streaming Data	2005	VLDB	5.8207617e-05
2,977	A Framework for Using Materialized XPath Views in XML Query Processing	2004	VLDB	7.7876083e-05
12,389	Towards a Physical XML independent XQuery/SQL/XML Engine	2008	VLDB	4.1945683e-05
12,503	Efficient XSLT Processing in Relational Database System	2006	VLDB	4.1945683e-05
12,441	XPath on Steroids: Exploiting Relational Engines for XPath Performance	2007	SIGMOD	4.1945683e-05
7,639	Why Off-the-Shelf RDBMSs are Better at XPath Than You Might Expect	2007	SIGMOD	4.6904624e-05